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Finding the Fourth Proportional to 88,939.40, 133,344.30 and 36,321.80

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Solution

The fourth proportional to 88,939.40, 133,344.30 and 36,321.80 is: 54,456.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,939.40 : 133,344.30 = 36,321.80 : x
  2. Step 2: Convert to fraction form
    88,939.40/133,344.30 = 36,321.80/x
  3. Step 3: Cross multiply
    88,939.40x = 133,344.30 × 36,321.80
  4. Step 4: Simplify right side
    88,939.40x = 4,843,304,995.74
  5. Step 5: Solve for x
    x = 4,843,304,995.74/88,939.40
  6. Step 6: Final answer
    x = 54,456.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.